Samuel mellob



L. i t

UNITED STATES PATENT OFFICE.

SAMUEL MELLOR, OF PATRIGROFT, COUNTY OF LANCASTER, ENGLAND.

MORDANT.

SPECIFICATION forming part of Letters Patent No. 241,398, dated May 10,1881.

Application filed December 10, 1880. (No specimens.) Patented in EnglandMay 5, 1880.

To all whom it may concern Be it known that I, SAMUEL MELLOR, a subjectof the Queen of Great Britain and Ireland, and residing at Patricroft,in the county of Lan- 5 caster, England, have invented Improvements inFixing Aniline or other Colors and Dyes, (for which I have obtained aPatent in Great Britain, No. 1,834, May 5, 1880,) of which the followingis a specification.

[ These improvements relate to the fixing of aniline and other colorsand dyes used in the dyeing and printing of cotton, silk, or othertextile fabrics, whether alone or in conjunction with any form oftannin; and theinventi on con- 1 5 sistsin the use therefor ofstibio-fluorine saltsthat is, the fluorides of antimony, thefluosilicates of antimony, the double fluorides of antimony and sodium,or of antimony and potassium, or of antimony and ammonium, the fluo- 2oantimoniates of sodium, potassium, or ammonium, the fluo-oxyantimoniatesof sodium, potassium or ammonium, or any combination of fluorine andantimony, either by themselves or in conjunction with any other metal ormetalloid.

Although I claim as my invention the use for this purpose of any of thebefore-mentioned compounds of antimony, yet I use in preference (chieflyto reduce the cost) the double fluorides of antimony and sodium and thefluoantimoniate of sodium, potassium, or ammonium, the form er when anacid salt, and the latter when a neutral or alkaline salt, is requiredto meet the varying qualities and conditions of the coloring-matters tohe fixed. In using either of the above-named salts of I antimony I makea bath containing such a quantity of any of these salts as will equalaboutfrom one-quarter ot'an ounce to one ounce of metallic antimony tothe gallon of solution. Through this bath (either cold or at anytemperature up to boiling-point) the cloth, previ- 'ously dyed, orprinted, or otherwise prepared SAMUEL MELLOR.

Witnesses:

CHARLES DAVIES, JNo. HUGHES.

